fig16
Figure 16. (A) Electronic band structure and corresponding electron state density of WB4. (B) The Kohn-Sham wave function isosurfaces of the Dirac points listed in (A). (C) Schematic diagram of hydrogen atom adsorption. (D) Gibbs free energy of HER under different strain conditions. (E) Gibbs free energy of WB4 with 3% tensile strain under different hydrogen coverage, This figure is adapted with permission[130], Copyright © 2019 Royal Society of Chemistry.
